191941 has 4 divisors (see below), whose sum is σ = 192832. Its totient is φ = 191052.

The previous prime is 191929. The next prime is 191953. The reversal of 191941 is 149191.

191941 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 149191 = 7 ⋅21313.

It is an interprime number because it is at equal distance from previous prime (191929) and next prime (191953).

It is a cyclic number.

It is not a de Polignac number, because 191941 - 2¹⁷ = 60869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106 + ... + 628.

It is an arithmetic number, because the mean of its divisors is an integer number (48208).

2¹⁹¹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

191941 is a deficient number, since it is larger than the sum of its proper divisors (891).

191941 is an equidigital number, since it uses as much as digits as its factorization.

191941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its digits is 324, while the sum is 25.

The square root of 191941 is about 438.1107166003. The cubic root of 191941 is about 57.6840729899.

The spelling of 191941 in words is "one hundred ninety-one thousand, nine hundred forty-one".